at once Meaning, Definition & Usage

  1. adverb without delay or hesitation; with no time intervening
    straightaway; forthwith; like a shot; straight off; directly; right away; immediately; now; instantly.
    • he answered immediately
    • found an answer straightaway
    • an official accused of dishonesty should be suspended forthwith
    • Come here now!
  2. adverb simultaneously
    at a time; at one time.
    • he took three cookies at a time

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